Clutch and transmission



1. DE MARTINO.

CLUTCH AND TRANSMISSION.

APPLICATION FI'LED' NOV; 28, 1919.

PatentedSept. 5, 1922 2 sH'EETs-sHEET I.

mww S R JfDE MARTINO. CLUTCH AND TRANSMISSION.

APPLICAHON FILED NOV, 28.1919.

Patented 5, 1922.

fivenfan Patented Sept. 5, 1922.

metres stares; earaar JOSEPH DE MARTINO; orcmcaeo, rumors, ASSIGNOR '10 OHN H. LEE, TRUSTEE,

I I or cnrcaeo, rumors.

CLUTCH AND TRANSMISSION.

shown inthe accompanying, drawing, in

which Figure 1 is a vertical. longitudinal section through clutch and transmission;

Fig. 2 is. a section on the line 2'-2 of Fi 1, and a "g. 3 is a" section on the line 33 of .Fi 1.

This is an improved formof the clutch and transmission shown in my co-pending applicatiom'SerialNo. 306,065, filed'June .23,

1919. I have illustrated an embodiment of my invention of a clutch and transmlssionin I an automobile .engine'crank'shaft 10'which=' wheel has secured thereto two "annulardisks' 11 and 11 which are adapted to engage the friction disks 12 and 13 respectively. The

. "friction disk 12 is normally pressed against the annular disk 11 bymeans of a spring 14, and is slidably keyed to an intermediate shaft 15. The forward end of this shaft has a. restricted concentric pin 15 which is jour-- nalled in the end of the crank shaft 10.

The rear end of the intermediate end 15 of the intermediateshaft 15 is also reduced and is journalled in the propeller shaft 16- which in turn is carried by the ball-bearing 17 inthe housing 18. 1 The reduced shaft 15 also carries a sleevemember 19 which is car ried by the ball-bearing 20in the housing-18.

The'sleeve 19, has a spider-l9 in which are secured pins. 21'. Each of these pins has journalled thereon a gear 22 which meshes with the sun gear 15 which is secured to the intermediate shaft 15. The gears 22 also mesh with the annular gear 23 which is carried by a sleeve 24 which is journalled on the shaft 15.- A ball-bearing 25 is also provi'ded between this sleeve and the cover plate 18* of the transmission housing 18. Felt rings 26 and 27 are also placed at the sides of the ball-bearings 25' and 17 respectively. Pockets 28 are formed in the periphery of Fig. 2. When, versed rollers29 roll up the gear23 which are sloping in one directionand have an abrupt abutment in the 1 other, and in. which locking rollers 29 areadaptedto lie. These rollers will lightly engage theinner face of the annular wall18" of the transmission housing when the gear 23 is turned inthe direction of the arrow,

however, the gear 23 is reofthe opening 28 and grip the annular face, 18 thereby lockingthe gear 23 from rotation in that direction.

the inclined face A- spring 29 is added tomake the action of the rollers more certain and uniform. The friction disk 13 is slidably keyed on the sleeve 24 and is normally pressedinto engagement in the annular disk-11 by the spring 30. A ball-bearing 31 is provided on the opposite side. of the disk 13 against are secured to a shaft 33. This shaft is journalled in lugs 18 on the transmission cover, and has secured thereto a clutch lever 34. The upper end of this-lever has pivot ally secured thereto a pedal 35 which has a pawl 35 which is adapted to engage notches 36 and 36 in the quadrant 36.

The sleeve 19 has secured thereon a gear 37 the rear face of which has teeth 37. A gear 38 is -slidably mounted upon the propeller shaft 16 which is preferably formed with the idler gear 44, which lies behind the which bear the bifurcated fingers 32- which pin 39 which is I gear 43 and is constantly in mesh therewith.

A shift r0d45 which is "slidably mounted in the housing carries a finger 46 which engages an annular groove 38 in the hub. of the car 38.

mission is. as follows:

The two clutch elements '12 and 13 are nor- T e operation of my clutch and transmally in engagement with the annular disks 11 and 11 as shown in Fig; 1 under the usual driving conditions. In that case the shaft- 15 and the sleeve 24 are turned with the crank shaft, and consequently the gears,

50 gear 44 so as to get very slow reverse.

' .22 and consequently thensleeve 19 and the right gear 37 at the same speed,

When the gear 38' is moved to the extreme hand position it is engaged with. the

gear 37 by means of the clutch teeth 37 a and 3.8,- and the propeller shaft 16 is accordingly shaft and 'a propeller shaft in' axial aligndriven at the same speed as the engine crank shaft. It will be'understood that connection is made with the stub end 16 of the propeller shaft by means of the usual automobile propeller shaft or in any other. desired the sleeve 19 and the gear 37. The speed of,

construction and arrangement may be made shaft 16 at a reduced speed.

manner. r With both of the cluteh elements 712. and

in engagement, andthe gear 38 meshing with the. gear 42 thedrive willtake place through the gear 37'a's, was just explained. This gear, however, will .now drive the gear .41 which in turn'will drive the" gear 42 and it the gear 38 thereby drivin 'the'propeller ith the'gear 38 in mesh with the idler 44 the drive will now take place from the gear 37 through the gears 41, 43 and 44 of the sliding gear 38 and will be driven at a slow speed thereby in the reverse direction. v

If now the clutch lever 34 is pushed for.- ward until the pawl 35*" engages the notch 36" thefriction' disk 13 will be disengaged from the annular disk 11.

ment 13 is released and the shaft 15 is turned of the gear '23 is to run inthe reverse direction. This, however, is prevented by the roller 29 of the overrunningclutch as shown in Fig, 2 which now looks, thereby making the annular gear 23 stationary. As the gear 15* on the shaft 15 turns it carries the gears 22 forward thereby driving the shaft 19, however, isslower than that of the shafts 15 and'10. I

The: gear 38 may now be shifted as before,

" namely, to the right so asto engage the gear 37 and be driven thereby at the same speed,

. or .be. shifted to the left so as to engage the gear 42 for a slower forward speed, or be shifted still further andbe meshed with the While I have shown and described but a modifications. Changes therefore in the 1 claims.

" by Letters Patent is:

The drive will now takeplatzethrough the clutch element 12 and theshaft 15. As soon as the clutch eleof the invention as-disclosed in the appended What I claim as new and desire to secure without departing from the spirit andscope 1. A transmission comprising in combination, a driving member, an intermediate.-

ment, a sleeve upon said intermediate shaft,

or said intermediate shaft and sleeve in uni-' at means to drive said intermediateshaft only sonyat will, sun and universe gears carried'by said intermediate shaft and said sleeve respectively, a spider adapted to revolve upon" the axis of said shafts, planet gears carried by said Spider and meshing with said "sun and universe gears, means to automatically lock said unlverse gear upon inltial reverse movements, and means to drive said propeller shaft throughsaid spider.

2. A transmission comprising-in combina-' tion, a stationary casing, asleeve journaled in and projecting from said casing, a shaft journaled in and projecting from said sleeve, means to at will drive said shaft alone ,or said shaft and sleeve in unison, sun and universe gears carried by said shaft and sleeve respectively, a partition in said casing, a spider journaled in said partition, planet gears carried by said spider in mesh-with said sun and universe gears, a propeller shaft'journaled in said casing and means todrive said propeller shaft actuated by saidspider.

, 3. A transmission comprising in combina-' tion, a stationary casing, hearings in opposite ends of said casing, an intermediate bearing member in said casing, a sleeve journaled I in one of said first named bearings and projectin from the. casing, ash'aft journaled in said sleeveand projecting therefrom exterior'of the-casing, means to at will drive said shaft alone or said shaft and sleeve in unison, sun and universe gears carried by saidshaft and sleeve respectively within said casing, a spider journaled in said intermediate bearing member, planet gears carried by said spider in mesh with said sun and planet gears, a propeller shaft journaled in the other of said first named bearings, a counter shaft'journaled insaid casing and said bearing" member on an aXis parallel with said propeller shaft, constantly meshing gears on said spider and counter shaft and a sliding ear adapted to be drivenby said counter shaft to actuate said ropeller shaft.

' I JOS H on MARTINO. 

